PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-23:13:00
G05     49.2           15.3                7.6 +/-    1.74      18.7 +/-    1.74  0.140 / 0.410
G10     236.9          15.0               12.6 +/-    1.02      31.5 +/-    1.02  0.160 / 0.310
G13     72.8           35.2               10.9 +/-    1.08      17.2 +/-    1.08  0.090 / 0.250
G15     120.8          53.5               12.6 +/-    0.42      15.2 +/-    0.42  0.210 / 0.280
G16     313.5          12.5                6.8 +/-    2.48      18.1 +/-    2.48  0.040 / 0.070
G20     249.7          37.8               11.5 +/-    1.29      17.3 +/-    1.29  0.040 / 0.060
G21     314.6          47.4               10.3 +/-    0.96      13.4 +/-    0.96  0.080 / 0.110
G25     199.1          10.5               11.6 +/-    3.14      32.0 +/-    3.14  0.070 / 0.110
G26     286.5          19.9                4.8 +/-    2.11      10.5 +/-    2.11  0.030 / 0.050
G29     153.7          69.8               10.8 +/-    0.44      11.5 +/-    0.44  0.030 / 0.040